CN206129706U - Air purifier's airflow driving device - Google Patents
Air purifier's airflow driving device Download PDFInfo
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- CN206129706U CN206129706U CN201620895985.3U CN201620895985U CN206129706U CN 206129706 U CN206129706 U CN 206129706U CN 201620895985 U CN201620895985 U CN 201620895985U CN 206129706 U CN206129706 U CN 206129706U
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Abstract
The utility model discloses an air purifier's airflow driving device, this air purifier's airflow driving device orders about the air current and loops through filter screen, centrifugal fan and air outlet including air purifier casing and centrifugal fan. Centrifugal fan includes volute air channel, the impeller, the plane at the air -out axis of orientation of volute air channel air outlet place with the horizontal plane at impeller axial air inlet direction impeller shaft place is parallel arrangement in the space, the volute air channel air outlet sets up and is perpendicular arranging in the side direction of its casing and with diameter of impeller, and each air outlet air -out direction of volute air channel is along the air -out of the curved tangential direction side direction of spiral case and be anticlockwise together or clockwise. This air purifier's airflow driving device can realize the biggest impeller of mounting dimension in the air purifier casing to air purifier's the amount of wind has been improved, the design of left and right sides air -out has simultaneously improved reliability and user experience, the two side air -out amount of wind are impartial, disequilibrium in the time of can not causing system's operation.
Description
Technical field
This utility model is related to air cleaning facility technical field, and in particular to a kind of air stream drives dress of air purifier
Put.
Background technology
Air purifier, also known as air cleaner, air cleaner, depurator, is to refer to adsorb, decompose or convert respectively
Kind of air pollutants, air pollutants generally comprise the finishing pollution of PM2.5, dust, pollen, abnormal flavour, formaldehyde etc, antibacterial,
Anaphylactogen etc..Air is drawn in equipment by air inlet by the principle of air purifier generally by modes such as machineries
Portion, and through the filter or other kinds of cleaning module installed in device interior, by sides such as filtration, absorption or decomposition
Formula, taking-up are inhaled into part pollutant in the air of device interior, then are discharged in air by air outlet.
Air is drawn through filter screen by the suction that blower fan is produced by air purifier or similar devices, enters into blower interior,
The flabellum for being rotated again shifts air outlet discharge onto.Filter screen is normally placed at before blower fan, so arrange the reason for be air pass through
Centrifugal blower is entered back into after purification, is a protection well to centrifugal blower, also be able to can be avoided with the service life of extension device
The problems such as abnormal flavour is produced after long-term dust stratification inside centrifugal blower.As filter screen generally has certain resistance, all purification of air
Device or similar devices typically all use the centrifugal blower with spiral case.The effect of spiral case is will be dynamic while outlet is directed the air to
Pressure changes into static pressure, improves the efficiency and pressure of centrifugal blower, so as to the resistance for overcoming filter screen to bring, produces certain wind
Amount.For most of air purifier using the centrifugal blower that leans forward for, spiral case is the requisite pith in air channel.
The curve of generally spiral case is the design parameter according to centrifugal blower, according to archimedes curve, or loaarithmic curve, or
Four arcses simulate above-mentioned two classes curve, or other simulations done to front two classes curve.Whole air channel is intimate to centrifugal blower
The state of full parcel, only there is opening air feed to discharge in air outlet.For volute casing centrifugal blower fan, due to the presence of spiral case,
The size in whole air channel is larger.Under normal circumstances, the centrifugal blower diameter of air cleaning system typically only has overall dimensions
50%-75%, and the size of centrifugal blower, are one of deciding factors of air cleaning system air quantity.
One typical air purifier centrifugal blower volute, the impeller outer edge of middle circle for centrifugal blower, air intake
In the centre of centrifugal blower, the curve of outside is spiral case to mouth, and the above is air outlet.Wind edge is entered perpendicular to the direction of plane, with
The rotation of centrifugal blower flabellum, by constantly becoming big region in spiral case, is discharged from top air outlet.For general domestic
Air purifier, the air outlet of centrifugal blower and the upwardly opening air channel of impeller, in the time that air purifier is not used,
Substantial amounts of dust or debris can be fallen into.These dusts are returned inside pollution centrifugal blower, when user can be when reusing next time again
Secondary ejection, brings bad Consumer's Experience.And after being contaminated inside centrifugal blower, there is also the secondary pollutions such as growth of microorganism
Risk.As the air of air purifier is to first pass through filter screen, then through centrifugal blower, the centrifugal blower blower fan internal contamination
Cannot be filtered out by filter screen.
For the air purifier of general domestic, upwardly opening air channel, in the time that air purifier is not used, meeting
Fall into substantial amounts of dust or debris.These dusts are returned inside pollution centrifugal blower, when user can be when reusing next time again
Spray, bring bad Consumer's Experience.And after blower interior is contaminated, there is also the risk of the secondary pollutions such as growth of microorganism.
As the air of air purifier is to first pass through filter screen, then through blower fan, blower interior pollution be cannot by filter screen mistake
Filter.
The content of the invention
The purpose of this utility model is exactly, in order to solve the above-mentioned problems in the prior art, to propose a kind of structure letter
It is single, and it is capable of achieving a kind of air flow drive device of air purifier of side air-out simultaneously.
The purpose of this utility model is achieved through the following technical solutions：A kind of air flow drive device of air purifier,
Which includes shell of air purifier, centrifugal blower, and the centrifugal blower includes spiral case air channel, and impeller, the spiral case air channel go out
The horizontal plane that the plane that the air-out direction axle in air port is located is located with the impeller air inlet through hollow shaft direction impeller axle in space is in
It is arranged in parallel.
Preferably, the spiral case duct outlet be arranged at the lateral of its housing and with the perpendicular cloth of impeller horizontal diameter
Put, each air outlet direction in the spiral case air channel is along the lateral air-out in spiral case curve near tangent direction and is all counterclockwise or up time
Pin direction.
Preferably, the spiral case air channel at least includes two sections of symmetrically arranged spiral case curved sections, and each spiral case curved section includes
Curve simulation starting point, snail tongue, curve, each spiral case curved section are gradually opened for sequence from inside to outside according to curve simulation starting point, snail tongue, curve and are in
Involute shape, the phase contrast between the snail tongue of two adjacent spiral case curved sections are at least 90 degree, each section of spiral case song in the spiral case air channel
Line is correspondingly arranged at the region of impeller outer edge 25%-50%, and gap is provided between the snail tongue and impeller, and the gap is impeller outer diameter
2%-10%, the ratio of the external diameter of the impeller and two sections of symmetrical spiral case curves or so farthest distance is more than 75%.
Preferably, the curve shape of each section of spiral case curved section in the spiral case air channel is archimedes curve, or logarithm is bent
Line, or more two kinds of curves simulation.
Preferably, the snail tongue is single arc-shaped snail tongue or bicircular arcs snail tongue, the 2%- of a diameter of impeller outer diameter of the snail tongue
8%。
Preferably, the snail tongue of each section of spiral case curved section in the spiral case air channel and curve are Split type structure, the snail tongue with
It is overall that curve negotiating is connected as one.
Preferably, the snail tongue of each section of spiral case curved section in the spiral case air channel and curve are Split type structure, the spiral case point
For two sections, the two sections spiral case forms a complete spiral case with the shell of air purifier clamping.
Preferably, the snail tongue of each section of spiral case curve in the spiral case air channel and curve are an overall structure.
Preferably, the camber line terminal of snail tongue is touched with the air purifier outer casing inner wall, the air purifier shell
Inwall and spiral case contact of a curve.
The advantage of technical solutions of the utility model is mainly reflected in：The air flow drive device of the air purifier is capable of achieving side
The design of face air-out simultaneously, compared with prior art air outlet is on top, greatly reduces dust or foreign body is entered into from top
The risk of internal system, improves reliability and Consumer's Experience；Both sides air-out volumes is impartial, when not resulting in system operation not
Balance；The overall width of blower sizes and system（The distance of two ends curve or so farthest）Ratio, can reach 80%-90% or
It is more than person, the 50%-75% of noticeably greater than original scheme, i.e., in the case of system-wide determination, using this utility model technology
Scheme can with the bigger blower fan of preferred dimension, so as to reach bigger air quantity, in other words, in the case of using identical blower fan,
Can accomplish less using the system dimension of technical solutions of the utility model.
Description of the drawings
Referring to the drawings, disclosure of the present utility model will be easier to understand.Skilled addressee readily understands that
It is：These accompanying drawings are intended solely for illustrative purposes, and are not intended to be construed as limiting protection domain of the present utility model.Wherein：
Fig. 1 is structural representation of the present utility model；
It is numbered in figure：1--- shell of air purifier, 2--- centrifugal blowers, 21--- spiral cases air channel, 211--- spiral cases
Duct outlet, 212--- air outlet extension extended lines, 4--- spiral case curves, 41--- curve simulation starting points, 42--- snail tongues,
43--- curves, the other parts of 44--- spiral cases.
Specific embodiment
The purpose of this utility model, advantage and feature, will carry out figure by the non-limitative illustration of preferred embodiment below
Show and explain.These embodiments are only the prominent examples using technical solutions of the utility model, all to take equivalent or wait
Effect conversion and the technical scheme that formed, all fall within this utility model it is claimed within the scope of.
As shown in figure 1, a kind of air flow drive device of air purifier, which includes shell of air purifier 1, and wind is centrifuged
Machine 2.The centrifugal blower 2 includes spiral case air channel 21, impeller, the plane at the air-out direction axle place of the spiral case duct outlet
The horizontal plane being located with the impeller air inlet through hollow shaft direction impeller axle is in be arranged in parallel in space, in technology of the present utility model
In scheme, air inlet through hollow shaft of the air-flow along centrifugal blower, tangential air-out.
As shown in figure 1, the spiral case duct outlet 211 be arranged at the lateral of its housing and with the perpendicular cloth of impeller diameter
Put, each air outlet direction in the spiral case air channel is along the lateral air-out in spiral case curve near tangent direction and is all counterclockwise or up time
Pin direction.The spiral case air channel at least includes two sections of symmetrically arranged spiral case curves, as shown in figure 1, each spiral case curve 4 includes song
Line simulation starting point 41, snail tongue 42, curve 43.The camber line terminal of snail tongue is touched with the air purifier outer casing inner wall, the sky
Gas purifier outer casing inner wall and spiral case contact of a curve.The effect of the spiral case 42 is that the gas for leaving the impeller 22 is oriented to snail
Shell is exported, and part dynamic pressure is changed into static pressure.The structure of spiral case is complicated space curved surface body, and spiral case is centrifugal fan
Critical component, spiral case inlet pressure are directly connected to the flow losses in the spiral case, and also the aeroperformance of impeller is had a significant impact,
It directly affects the performance parameters such as the efficiency and output flow of blower fan, pressure.
As shown in figure 1, wherein outer of the middle circle for impeller, outside two ends curve is symmetrical two spiral case, and arrow refers to
The direction of air-out is shown.This figure describes the example that impeller rotates in one direction, if impeller direction of rotation is contrary, then
Two spiral cases and wind direction should also be corresponded in turn.
As shown in figure 1, each spiral case curve is gradually opened for sequence from inside to outside according to curve simulation starting point 41, snail tongue 42, curve 43, two
Phase contrast between the snail tongue of adjacent spiral case curved section is at least 90 degree.In the spiral case air channel, each section of spiral case curve wraps up leaf respectively
The region of wheel outer rim 25%-50%, in the present embodiment, in the spiral case air channel, each section of spiral case curve is preferably to wrap up leaf respectively
The region of wheel outer rim 30%-45%.And the state that whole air channel is almost wrapped up entirely to centrifugal blower in the technical scheme of prior art,
Only there is opening air feed to discharge in air outlet.
2%-10% of the gap between the snail tongue 42 and impeller for impeller outer diameter, in the present embodiment, the snail tongue 42 with
Gap between impeller is preferably the 3% of impeller outer diameter.The external diameter of the impeller 22 and two sections of symmetrical spiral case curves or so farthest away from
From ratio be more than 75%, in the present embodiment, the external diameter of the impeller and two sections of symmetrical spiral case curves or so farthest away from
From ratio can reach 80%-90% or more than, the 50%-75% noticeably greater than in prior art.In two sections of symmetrical snails
In the case that shell curve or so farthest distance determines, adopt this utility model can be with the bigger blower fan of preferred dimension, so as to reach
To bigger air quantity, in other words, in the case of using identical blower fan, can using the system dimension of technical solutions of the utility model
It is less to accomplish.
As shown in figure 1, the spiral case air channel is on the basis of 0 degree that impeller outer diameter is justified, with wherein one section spiral case curve as base
Directrix, arranges the simulation starting point of datum line between 270-360 degree, and the snail tongue of datum line is arranged between 270-315 degree, described
Benchmark snail tongue extension broken line section corresponding with another section of spiral case curve constitutes benchmark air outlet, the prolongation of the benchmark air outlet outer rim
Between 270-360 degree, each section of spiral case curve is symmetrical arranged line 212 based on datum line.
The curve shape of each section of spiral case curve in the spiral case air channel is archimedes curve, or loaarithmic curve, or more
The simulation of two kinds of curves.Length of a curve has the difference of essence with existing scheme, i.e., the length of single spiral case is than the two of this programme
Section spiral case will be grown a lot.The snail tongue 42 is single arc-shaped snail tongue or bicircular arcs snail tongue, a diameter of impeller outer diameter of the snail tongue
2%-8%, in the present embodiment, the snail tongue diameter is preferably the 3%-4% of impeller outer diameter；The snail tongue may also be employed multistage and set
Meter.
The snail tongue of each section of spiral case curve in the spiral case air channel is Split type structure, the snail tongue 42 and curve negotiating with curve
It is connected as one overall.In technical solutions of the utility model, the spiral case is divided into two sections, and the two sections spiral case is and air
Purifier shell clamping, forms a complete spiral case.
The snail tongue of each section of spiral case curve in the spiral case air channel is an overall structure with curve.In the present embodiment, it is described
Spiral case and the snail tongue can be alternatively separate type connection for integral type connection, and the spiral case and the snail tongue can be made aborning
For an entirety, it is also possible to make detached two parts and produce respectively, then assemble.The benefit for being separated into two parts is not
With the intensity of misgivings junction, the thickness of joint face can accomplish very thin.Spiral case such as integral production, can only use a kind of material
Material.After separating making, snail tongue can adopt foamed materialss to make to reduce noise, and other parts can still adopt plastics,
Metal or other materials make, and together make with the other parts of casing, save overall manufacturing cost.
The spiral case duct-curve be two sections of symmetrically arranged spiral case curves, the phase between the snail tongue of two adjacent segment spiral case curves
Potential difference is 180 degree.It is optimal that the spiral case duct-curve is arranged to two sections, and the spiral case duct-curve is arranged to two sections can be made
The width of blower fan diameter/depurator reaches maximum, such that it is able to realize under the size of certain air purifier using maximum straight
The purpose of footpath blower fan, i.e., 90 degree and 270 degree of directions in Fig. 1 schematic diagrams, it is assumed that the position in 90 degree of directions is A, 270 degree of directions
Volume position is B, and the width of the distance between A to B for the air purifier, the spiral case are nearest from the centrifugal blower.
The technical program is analyzed to the volute shape of following several situations, it is contemplated that following several situations：It is complete
One section of whole spiral case, two in the technical program section spiral case, three sections of spiral cases, four sections of spiral cases, and multistage spiral case.The curve of spiral case is
Gradually rotate away from inside to outside, the closer to where snail tongue from blower fan more close to.Due to 90 degree of positions and 270 degree of position
Symmetrically, two sections of spiral cases can just the position that 90 degree and 270 degree are individually placed to where most narrow, and three sections or more than three sections
Any odd number section spiral case（Assume that every section of spiral case is the same）, be cannot accomplish be directly aligned in where most narrow 90 degree and
270 degree of the two places.Therefore the arrangement of two sections of spiral cases, is an advantage over any odd number section spiral case.
Than the more even number section spiral cases of two sections of spiral cases, such as four sections, can be to accomplish more preferably two sections of spiral cases therein most
Narrow place is individually placed to the position of 90 degree and 270 degree.Why four sections or more multistage spiral case set forth below are not as the effect of two sections of spiral cases
Really good, reason is：As the opening of spiral case must have suitable aperture, the wind being otherwise pressed in spiral case can not blow not go out, make
Into the decline of systematic function.In general, spiral case is shorter, and the amplitude that its curve outwards rotates is bigger, can finally have to reach
The purpose of larger open.That is, spiral case is shorter, curve is from " origin of curve "（That is the virtual part of spiral case and blower fan distance
It is zero）The longer corresponding curve of spiral case of the Amplitude Ratio that rotates outward of beginning is big.Therefore, from snail tongue（I.e. spiral case is actual starts
Where）Start, its distance with blower fan also can be some larger.That is, four sections or more multistage spiral case, itself and fan blade it
Between distance be greater than two sections of spiral cases.Further say, under performance condition equally, two sections of spiral cases can accomplish at 90 degree and
Where 270 degree, than four sections or more multistage spiral case closer to.Additionally, if if four sections or more multistage spiral case, its air outlet number
Mesh also can be accordingly more, it is impossible to accomplish air outlet to be only distributed in the left and right sides.
Embodiment 1：In the present embodiment, the snail tongue is preferably single arc-shaped snail tongue, the external diameter of the impeller and two sections
The ratio of symmetrical spiral case curve or so farthest distance is more than 90%, further, the external diameter of the impeller and two sections of symmetrical snails
The ratio of shell curve or so farthest distance is 95%.Gap between two snail tongues and impeller is preferably impeller outer in the present embodiment
The 3%-5% in footpath.
In the spiral case air channel, two sections of spiral case curves wrap up the region of blower fan outer rim 30%-45% respectively；Every section of curve and wind
Between machine, the relation of distance is：The big system of nominal air delivery, the opening of curve should be bigger, the little system of nominal air delivery, curve
Opening should be less.
The spiral case air channel on the basis of 0 degree that impeller outer diameter is justified, the line on the basis of wherein one section spiral case curve, in 270-
The simulation starting point of datum line is set between 315 degree, the simulation of datum line in the present embodiment, is preferably set in 270 degree of this points
Starting point.The snail tongue of datum line is set at 270 degree, the snail tongue extension broken line of the datum line, the benchmark snail tongue are set at 225 degree
Extension broken line section corresponding with curve constitutes benchmark air outlet, and the extended line of the benchmark air outlet outer rim is 255 degree of positions.
Another section of spiral case curve is symmetrical arranged based on datum line, and which simulates starting point between 90-135 degree, in 90-
Snail tongue is set between 105 degree, and snail tongue extension broken line section corresponding with curve constitutes another air outlet, the air outlet outer rim
Between 90-180 degree, two air outlet air-out direction of the spiral case air channel goes out for bilateral extended line along spiral case curve near tangent direction
Wind is simultaneously all counterclockwise.
As shown in figure 1, the snail tongue 42 and impeller outer edge are in smoothing junction where 270 degree in the present embodiment, jointly
A part for archimedes curve or loaarithmic curve is constituted, coupling part is thinnest part.The other parts of the spiral case and spiral case
Can aborning as an entirety, it is also possible to make detached two parts and produce respectively, then assemble.It is separated into two
The benefit of part is the intensity for not spending misgivings junction, and the thickness of joint face can accomplish very thin.The spiral case such as one
Make, a kind of material can only be used.After separating making, snail tongue can adopt foamed materialss to make to reduce noise, and other portions
Divide and can still adopt plastics, metal or other materials make, and together make with the other parts of casing, save overall manufacturing
Cost.
Embodiment 2：In the present embodiment, the snail tongue is preferably single arc-shaped snail tongue, the external diameter of the impeller and two sections
The ratio of symmetrical spiral case curve or so farthest distance is more than 90%, further, the external diameter of the impeller and two sections of symmetrical snails
The ratio of shell curve or so farthest distance is 90%.Gap between two snail tongues and impeller is preferably impeller outer in the present embodiment
The 5% of footpath.
In the spiral case air channel, two sections of spiral case curves wrap up the region of blower fan outer rim 30%-45% respectively；Every section of curve and wind
Between machine, the relation of distance is：The big system of nominal air delivery, the opening of curve should be bigger, the little system of nominal air delivery, curve
Opening should be less.
The spiral case air channel on the basis of 0 degree that impeller outer diameter is justified, the line on the basis of wherein one section spiral case curve, in this reality
Apply in example, the simulation starting point of datum line is preferably set at 315 degree.The snail tongue of datum line is set at 285 degree, outside the benchmark snail tongue
Prolong broken line section corresponding with another section of spiral case curve and constitute benchmark air outlet, the extended line of the benchmark air outlet outer rim is at 360 degree.
Another section of spiral case curve is symmetrical arranged based on datum line, and its simulation starting point is set at 105 degree between 135 degree
Put snail tongue, snail tongue extension broken line section corresponding with another section of spiral case curve constitutes another air outlet, the air outlet outer rim
In 180 degree, two air outlet air-out direction of the spiral case air channel is that bilateral air-out is simultaneously same along spiral case curve near tangent direction to extended line
For counterclockwise.
As shown in figure 1, the snail tongue 42 and impeller outer edge are in smoothing junction where 280 degree in the present embodiment, jointly
A part for archimedes curve or loaarithmic curve is constituted, coupling part is thinnest part.The other parts of the spiral case and spiral case
Can aborning as an entirety, it is also possible to make detached two parts and produce respectively, then assemble.It is separated into two
The benefit of part is the intensity for not spending misgivings junction, and the thickness of joint face can accomplish very thin.The spiral case such as one
Make, a kind of material can only be used.After separating making, snail tongue can adopt foamed materialss to make to reduce noise, and other portions
Divide and can still adopt plastics, metal or other materials make, and together make with the other parts of casing, save overall manufacturing
Cost.
Design fan outlet being directly rotated by 90 ° from side air-out is not seen on market, two have been primarily due to
Individual obstacle：One is that air purifier air quantity is larger, can bring the imbalance of whole system from unilateral air outlet；Two is if will be whole
After coming, the width of equipment can be significantly increased system, be unfavorable for using, the air purifier or equipment of current side air-out,
Undersized blower fan is typically used.The technical scheme of the present utility model is can be applicable in air purifier, realizes a left side
The design of right both sides air-out simultaneously, compared with air outlet is on top, greatly reduces dust or foreign body enters into system from top
Internal risk, improves reliability and Consumer's Experience.
The utility model proposes a kind of new air channel technical scheme, using onesize（350×130）Forward centrifugal
The experiment done by machine, is to test under 300-800RPM in rotating speed, and the performance of two ways is consistent.And the technical scheme of prior art
System-wide be 480, adopt system-wide of the present utility model for 410, be the 85% of existent technique scheme.Turn above
The fast interval conventional state for air purifier, therefore the technical solution of the utility model is for the air stream drives of air purifier
It is applicable for device.
The technical program has the features such as structure novelty is compact, and air-out is uniform, is capable of achieving Bidirectional outlet air, and air output is equal
Deng not resulting in the imbalance of system, improve air output, so as to improve the purification efficiency of the air purifier.
This utility model has reached two purposes by the design to centrifugal blower volute：One can be in identical outer chi
Under very little restriction, using larger sized centrifugal blower, more Wind Volume is reached；Two is, air outlet upward, to have made both sides into
Air-out, when alleviating equipment non-operating state inside dust stratification problem, improve service life, improve Consumer's Experience.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit and essential characteristics of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in this utility model, any reference in claim should not be considered as restriction
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (9)
1. a kind of air flow drive device of air purifier, which includes shell of air purifier（1）, centrifugal blower（2）, which is special
Levy and be：The centrifugal blower（2）Including spiral case air channel（21）, impeller, the air-out direction axle institute of the spiral case duct outlet
The horizontal plane that is located with the impeller air inlet through hollow shaft direction impeller axle of plane in space in being arranged in parallel.
2. the air flow drive device of a kind of air purifier according to claim 1, it is characterised in that：The spiral case air channel
Air outlet（211）Be arranged at the lateral of its housing and with the perpendicular arrangement of impeller horizontal diameter, each air outlet in the spiral case air channel
Air-out direction is along the lateral air-out in spiral case curve near tangent direction and is all counterclockwise or clockwise direction.
3. the air flow drive device of a kind of air purifier according to claim 1 and 2, it is characterised in that：The spiral case
Air channel at least includes two sections of symmetrically arranged spiral case curved sections, each spiral case curved section（4）Including curve simulation starting point（41）, snail tongue
（42）, curve（43）, each spiral case curved section gradually opened in involute shape for sequence from inside to outside according to curve simulation starting point, snail tongue, curve,
Phase contrast between the snail tongue of two adjacent spiral case curved sections is at least 90 degree, and in the spiral case air channel, each section of spiral case curve is correspondingly arranged
In the region of impeller outer edge 25%-50%, the snail tongue（42）Gap, 2%- of the gap for impeller outer diameter are provided with between impeller
10%, the ratio of the external diameter of the impeller and two sections of symmetrical spiral case curves or so farthest distance is more than 75%.
4. the air flow drive device of a kind of air purifier according to claim 3, it is characterised in that：The spiral case air channel
The curve shape of each section of spiral case curved section be archimedes curve, or loaarithmic curve, or more two kinds of curves simulation.
5. the air flow drive device of a kind of air purifier according to claim 3, it is characterised in that：The snail tongue（42）
For single arc-shaped snail tongue or bicircular arcs snail tongue, the 2%-8% of a diameter of impeller outer diameter of the snail tongue.
6. the air flow drive device of a kind of air purifier according to claim 3, it is characterised in that：The spiral case air channel
Snail tongue and the curve of each section of spiral case curved section be Split type structure, the snail tongue（42）One is connected as with curve negotiating overall.
7. the air flow drive device of a kind of air purifier according to claim 6, it is characterised in that：The spiral case air channel
Snail tongue and the curve of each section of spiral case curved section be Split type structure, the spiral case is divided into two sections, the two sections spiral case with
The shell of air purifier clamping forms a complete spiral case.
8. the air flow drive device of a kind of air purifier according to claim 6, it is characterised in that：The spiral case air channel
Snail tongue and the curve of each section of spiral case curve be an overall structure.
9. the air flow drive device of a kind of air purifier according to claim 3, it is characterised in that：The camber line end of snail tongue
Point is touched with the air purifier outer casing inner wall, the air purifier outer casing inner wall and spiral case contact of a curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895985.3U CN206129706U (en) | 2016-08-18 | 2016-08-18 | Air purifier's airflow driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895985.3U CN206129706U (en) | 2016-08-18 | 2016-08-18 | Air purifier's airflow driving device |
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| CN206129706U true CN206129706U (en) | 2017-04-26 |
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| CN201620895985.3U Withdrawn - After Issue CN206129706U (en) | 2016-08-18 | 2016-08-18 | Air purifier's airflow driving device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089805A (en) * | 2016-08-18 | 2016-11-09 | 苏州倍安电子科技有限公司 | A kind of air flow drive device of air purifier |
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2016
- 2016-08-18 CN CN201620895985.3U patent/CN206129706U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089805A (en) * | 2016-08-18 | 2016-11-09 | 苏州倍安电子科技有限公司 | A kind of air flow drive device of air purifier |
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Address after: 215000 02-307, Northwest District, 99 Jinji Lake Road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU BEIAN ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD. Address before: 215000 No. 123, azalea Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: SUZHOU BEIAN ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170426 Effective date of abandoning: 20181130 |
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| AV01 | Patent right actively abandoned |